If you're looking for the brightest fashlight products available, look no further than the Streamlight Stinger Line. The Stinger line from Streamlight are the only machined aluminum flashlight to carry a Underwriters Laboratory (UL) rating. This HP Model features an amazing 40K Candlepower Xenon bulb. This is guaranteed to be one of the brightest (3) cell flashlights you've ever used. Stinger quality and performance are the reasons they are the product of choice for Police Officers and Fire Fighters around the country. This Stinger Model allows you to double your battery power! Now you can charge your Stinger flashlight while simultaneously charging its spare battery in the included Piggyback Holder. Features for this particular model are as follows: